CVE-2024-38567
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: carl9170: add a proper sanity check for endpoints Syzkaller reports [1] hitting a warning which is caused by presence of a wrong endpoint type at the URB sumbitting stage. While there was a check for a specific 4th endpoint, since it can switch types between bulk and interrupt, other endpoints are trusted implicitly. Similar warning is triggered in a couple of other syzbot issues [2]. Fix the issue by doing a comprehensive check of all endpoints taking into account difference between high- and full-speed configuration. [1] Syzkaller report: ... WARNING: CPU: 0 PID: 4721 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504 ... Call Trace: <TASK> carl9170_usb_send_rx_irq_urb+0x273/0x340 drivers/net/wireless/ath/carl9170/usb.c:504 carl9170_usb_init_device drivers/net/wireless/ath/carl9170/usb.c:939 [inline] carl9170_usb_firmware_finish drivers/net/wireless/ath/carl9170/usb.c:999 [inline] carl9170_usb_firmware_step2+0x175/0x240 drivers/net/wireless/ath/carl9170/usb.c:1028 request_firmware_work_func+0x130/0x240 drivers/base/firmware_loader/main.c:1107 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> [2] Related syzkaller crashes:
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 6.1.94-1 |
| debian | bullseye | fixed | 5.10.221-1 |
| debian | forky | fixed | 6.8.12-1 |
| debian | sid | fixed | 6.8.12-1 |
| debian | trixie | fixed | 6.8.12-1 |
| linux-kernel | affected | 4.19.316 |
References
- https://git.kernel.org/stable/c/03ddc74bdfd71b84a55c9f2185d8787f258422cd
- https://git.kernel.org/stable/c/0fa08a55201ab9be72bacb8ea93cf752d338184f
- https://git.kernel.org/stable/c/265c3cda471c26e0f25d0c755da94e1eb15d7a0c
- https://git.kernel.org/stable/c/62eb07923f3693d55b0c2d9a5a4f1ad72cb6b8fd
- https://git.kernel.org/stable/c/6a9892bf24c906b4d6b587f8759ca38bff672582
- https://git.kernel.org/stable/c/8650725bb0a48b206d5a8ddad3a7488f9a5985b7
- https://git.kernel.org/stable/c/ac3ed46a8741d464bc70ebdf7433c1d786cf329d
- https://git.kernel.org/stable/c/b6dd09b3dac89b45d1ea3e3bd035a3859c0369a0
- https://git.kernel.org/stable/c/eb0f2fc3ff5806cc572cd9055ce7c52a01e97645
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://www.suse.com/security/cve/CVE-2024-38567.html
- https://security-tracker.debian.org/tracker/CVE-2024-38567
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.